how many percentage needed in 12th science board for admission of computer science?

Hi

I am guessing that you are asking about Btech computer science.

Can you please help us with the name the college in which you want to get admission in computers .

As percentage requirement in 12th to be eligible varies from college to college. Also, depends on your category. I am a assuming you from general category

For example,

If you want to get admission in btech conputer science or any btech in IITs, NITs, IIITs, CFTIs then you need at least 75% marks in class 12th if belongs to General or OBC category  or at least 65% marks in class 12th if belongs to Sc or St category.  Although, for this year i. e 2021 this minimum percentage requirement of 75% - 65 % has been lifted off.

While there are also college, where you can pursue BTech computer science with 45% marks in 12th.

For example,

To be eligible for BTech in Rajkiya Engineering College, Bijnor which is government engineering college, one needs to pass 12th  with Physics and Mathematics as compulsory/mandatory subjects along with one of -   Chemistry or Biotechnology or Biology with at least aggregate of 45% marks (40% if you are from reserved categories ) in these subjects.

You can check the same by visiting our page for which link is given below :-

https://www.careers360.com/colleges/rajkiya-engineering-college-bijnor/btech-computer-science-and-engineering-course

So, it completely depends upon the college you want to get admission in but yes  you should try to get at least least 75% in 12th so that you can get admission in IIT  ,NIT ,IIITs which are the top colleges for  engineering in your computer science.

Thank you